I've had a T.C. Helicon Perform VK harmonizer/processor for some time now but never used it. I decided to try it with the S970.
Only thing the 3-switch foot pedal for it costs $70.
As you may know, I have real trouble letting go of things. Years ago I had a Digitech harmonizer, at least 10-15 years ago. I sold it but kept the 3-switch foot pedal for it. A trip to my archives in the garage and I brought it in, plugged it into the T.C. and it works perfectly!
I think I will like the VK. It is simple on the surface but really deep if you get into it. You can download apps for the P.C. and phone to add even more capabilities, effects, voices, etc. I probably won't get that far though.
In the meantime I also purchased a T.C.H. Harmony M from Allen, mainly just because they are hard to find. If I can't use it, I'll pass it along to somebody. DickieT has been looking for one...
I have bought and sold two previous Harmony M's. I have to quit hanging out with Bruno!